Crupper-machine



(No Model.)

H. LEIBE. ORUPPEB. MACHINE.

No. 416,466. Patented Dec. 3, 1889.

WITNESSES; INVENTORI W4 6 BY CAM g.

ATTORNEY.

UNITED STATES I PATENT OFFICE.

HUGO LEIBE, OF BALTIMORE, MARYLAND.

CRU PPER- MACHINE.

SPECIFICATION forming part of Letters Patent No. 416,466, dated December 3, 1889.

Application filed June 25, 1889.

Serial No. 315,530. (No model.)

To all whom it may concern.-

Be itknown that I, HUGO LEIBE, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invent-ed cer tain new and useful Improvements in Crupper-Machines, of which the following is a specification.

This invention relates to a machine for forming and shaping leather cruppers for harness, and is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the machine. Fig. 2 is a rear elevation of same. Fig. 3 is a top view of the machine. Figs. at and 5 show the revol'uble shaping-block. Figs. 6 and 7 are views of thedetachable handle of the shaping-block.

The crupper primarily consists of a leather tube filled with flaXseed. v

The object of this invention is to provide a machine for bending, stretching, and imparting form and shape to the filled leather tube.

One machine will be now described; but it may be stated that instead of using one machine alone a number of these machines are designed to be fixed to one table or bench for use in large establishments.

A suitable block or frame A h as an inclined front face I), a vertical rear face 0, and a top face cl. The inclined face has a pivot-pin e, and a circular shaping-block F has a central hole 6 and takes over the said pivot-pin, and is free or loose to allow of being revolved. The circular shaping-block has a circumferential rim-groove 9 extending entirely around the block, and which is so shaped in crosssection as to form a thin taper rim edge 71 at one side and a thicker rounded edge It at the other side. This block also has on one side two sockets 2', one each side of the said pivothole. These sockets receive lugs i, which project from a handleJ and serve to keep the handle in place on the shaping-block, while also allowing the handle to be readily detached.

. The block or frame A has two guides 7e 7e,

,secured partly on its inclined front face and partly on the top face. These guides have such position with respect to the pivot-=pin e and shaping-block F that when the leather crupper is around the said block, as shown in Fig. 3, the ends Zof the crupper may lie between the guides, and while there be subjected to tensile stretching. Where a number of these machines are to be fixed to one table, as here contemplated, the two guides for adjoining machines maybe of an approximate U shape, as shown.

The stretching device comprises a clamp to grip the ends Z of the crupper and means to subject the said gripped ends to strain. In the present instance the clamp consists of a plate M, hinged or jointed at n to the rear face of the block or frame A. The free end of the hinged plate constitutes one jaw of the clamp and has two short arms 0, between which the other jaw 19 is pivoted. The confronting faces of these two jaws are serrated, as shown in Fig. 1,the said serrations serving to effectively grip the ends of the crupper, which extend across the top face d of the block orframe. A cam-lever Q forces the clamp away from the block A. In the present instance the hinged plate M has a slot r, and the cam-lever Q proj ects through said slot and is pivoted at s to the plate. The cam .endt of the lever bears against the rear face 0 of the block. By forcing down the long end of the lever the crupper will be stretched.

The machine is to be operated in the following manner: The leather tube which is to form the crupper-dock, having been stufied or filled, is first placed around the circular shaping-block F, as shown in Fig. 3. The ends Z are laid between the guides k and across the top face d, and the extremities of the leather tube are placed between the serrated faces of the two grip-jaws M p, which are then tightened. The long end of the stretchinglever Q is then forced down. The handle J of the shaping-block is then grasped by the operator, and by turning it the said block is caused to revolve back and forward. The stretching action and the revoluble movement of the circular shaping-block serve to shape and smooth the crupper in a very satisfactory manner. The detachable handle J enables an operator to use one handle 011 a plural number of the blocks fixed to a bench, and thus facilitates the work, as the grip of the hand does not have to be relaxed.

It will be seen that where a number of these machines are fixed to one table or bench each shaping-block F will have its own stretching device, and thereby each separate crupperdock will be stretched to whatever extent may be required.

Having described my invention, I claim 1. In a cruppcr-forming machine, the combination of a clamp to grip the ends of the crupper, a block or frame having a pivot-pin, and a circular revoluble shaping-block having a circumferential rim-groove extending entirely around the block and provided with a central hole to take over said pivot-pin.

2. In a crupper-forming machine, the combination of a block or frame having a pivotpin, a circular revoluble shaping-block having a circumferential rim-groove extending entirely around the block and provided with a central hole to take over said pivot-pin, and a stretching device.

3. In a crupper-forming machine, the combination of a clamp to grip the ends of the crupper, a block or frame having an inclined face on the side most remote from the said clamp and provided thereon with a pivot-pin,

and a circular revoluble shaping-block having a circumferential rim-groove extending entirely around the block and provided with a central hole to take over said pivot-pin.

it. The combination of the block or frame A, a circular revoluble shaping-block, a plate M, hinged to the block or frame and having an attached grip-j aw, and a cam-lever pivoted to the hinged plate, as set forth.

5. The combination of the block or frame A, provided with guides 70 k, a circular shaping-block revoluble at one side of the said block or frame, a clamp to grip the ends of the crupper, and means, substantially as described, to force the clamp away from the said block or frame.

In testimony whereof I affix my signature in the presence of two witnesses.

IIL'GO LEIBE. Witnesses:

JNo. 'l. MADDOX, JOHN E. MORRIS. 

